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24 January, 21:09

a thermometer read - 17° f at 1:00 am. by 2:30 am the temperature has dropped 9.1 degree f. what was the temperature at 2:30 am?

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  1. 24 January, 22:24
    0
    The temperature was - 26.1° f at 2:30 am.

    Step-by-step explanation:

    * In this type of problems, we must think about

    - What is the meaning of wards;

    above and below or

    raised and dropped or

    increased and decreased

    - For above, raised, increase

    we will add the value of them to the initial value

    - For below, dropped, decreased

    we will subtract the value of them from the initial value

    * In our problem:

    - The reading of thermometer is - 17° f at 1:00 am.

    - The temperature has dropped 9.1° f when the time was 2:30 am.

    * Lets use the explanation above

    - We will subtract 9.1 from - 17

    ∴ - 17 - 9.1 = - 26.1° f

    * The temperature was - 26.1° f at 2:30 am.
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